Auxiliary air valve for internal-combustion engines



J1me 1929. A. a. WAGNER 1,715,440

' AUXILIARY AIR VALVE FOR INTERNAL COMBUSTION ENGINES Filed May 12, 192'? r I J 1 M 19 J .e. l v 4 z 16' a 1 1 .za I 12 I J 16' 7' l J;

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ill-AT ALBERT'G. AGNER, or CINCINNATI, OHIO, AssIGnoR TO THE VWEMB, COMPANY, or

CINCINNATI, OHIOQA CORPORATION OF OHIO.

AUXILIARY AIR ivALvE F03 IN iiRN L-ooI/IBusTIoN enemas;

Application filed May 12,

Thisinventioiris an auxiliary air valve for internal combustion engines and has for its object the provision of a simple and inexpensive valve either in the carbureter proper, or attached thereto immediately ad jacent'the outlet and which'will operate'in consonance with the carburetor throttle'valve to admit air between the carburetor 'and intake'manifold in order-to supply a lean mixture at high speed and economize fuel, andwhich will effectually mix the .air and fuel 7 so that the mixture flowing through the passages of the intake manifold will be uniform in quality. s

The invention is illustrated inthe accompanying drawing and will be hereinafter first fully described and then more particularly defined in the appended claims.

In the drawing: 7 Fig. 1 is'an elevation of a carbureter and part of the trunk of an intake manifold having the present invention embodied therein;

-Fig. 2 is an enlarged' vertical transverse section of the deviceof the invention Fig. 3 is a section on the line 33 of Fig. 2.

The carbureter 1 may be of any approved type and includes a throttle valve which is controlled by a lever 2connected with a throttle rod 3, the fuel'passing from the carbureter being delivered into thetrhnk i I of the intake manifold for *distribution to the engine cylinders. o

- Attached to or formedintegrally with carbureter outlet 5 adjacent the manifold trunk, I interpose a flat-sided substantially elliptical body 6 which, inthe embodimentshown in the drawing, is firmly secured in place by bolts? which construction will be understood from the drawing. This body or block 6 has an opening8. therethrough aligning axially with the outlet 5 and-the trunk 4 for the passage ofthel fuelfrom the carbureter, and in the circular wall' of said opening is a circumferential groove 9,'- it being: noted, uponjreference. to Fig. 2, that "the groove is deeper at the bottom of the block than at the top 'of'the same so that the groove is eccentrieto the bore or opening through theblock. A ring 10 is fitted in the opening 8 and rests against the wall 1927., Serial in. 190,837.

of the opening with its sides'fiush with the sides of the block, as shown'clearly in Fig. i

3, being secured by brazing or other preferred means, Through'the wall of the ring are openings or ports 11 establishing communicatioirwith the groove 9 and disposed the ring, and on its vertical di'ameter the ring is provided with anint egral spoke 12 obliquely relatively: tolthecircumferences of having a passage 13 extending from end to end thereof and-opening into thegro'ove 9.

At the'center'of the spoke is a conical enlargement 1ft having openings through its wall,sa1d openings havingxtheir' axes disposed parallel with the axes of the open- 'ings 11 and. a cover plate l filbeingsecured upon and extending, over the base of the .7

---An opening 17- isjformed th oa -t the and constituting an air'ou'tle't, the air inlet nipple'2O depending from" the valve casing in offset relationto the outlet? and acylini drical-valve chamber'*21' forming a "com-H munication between the'inlet and the outlet. One end of the chamber 21 is closed bythe plug 22 which'providesan abutmentfor an off inflow of-air. Bearing aga'instthe inner end of the piston valve'2 iis a-ip'lunger rod '25 extend-mg through the open end of the expansion spring 23, said 1 spring bearing upon a plston valve 24; and holding it"nor-I inally n theposition shown in'Fig'. 2 to cut valve chamber and equipped at "its outer j end with an enlarged head 26ffitting snugly but slidably through a bushing 27 in th end of the valve chamber. ,A bracket 28 'is carried by the projecting end of theb'ushing H 27 and extends below 'thebushing, an angle lever 29 being fulcrumed-upon said bracket in such position that'its upwardlyextending arm will bear uponthe end'of the head- I i 26 whilethe outstanding arm of the lever carries a I handle 5 rod v 30 which I extends into .the path of the throttlecontrolling;;lever=2 or is operatively connected therewith in any. convenient manner so, that, as'the throttle is opened, the rodwill be swung upwardly s and the angle lever 29 rocked-@Rocking of the angle lever 29 will cause" the plunger rod 25 to push the valve'2 l from over the air inlet'20 in an obvious manner. Loosely mounted on the plunger rod is a retarding valve 31' in the form of a disk of proper annular shoulder presented by the inner end of the head 26, a stop 33 being provided to limit the movement of the disk under the inj v i by Letters Patent of the United States is fluence of the spring 32.1

. It is essential, for the most efiicieiit operation of theengine, that the; air andfuel be very thoroughly mixed. Admitting air without mixing will merely weaken the mixture, as thegases or vapors leavingthe carbureter are notthoroughly mixed and the charges arestreaked, some portions being heavy with gasoline and continuing in this condition through the entire length of the I intake manifold, while other portions will be very lean, even tojthe extent of being air without any gasoline. The heavier portions condense and the condensation accumulates inthe manifold and forms puddles on the lower inner surface of the same. c When the ports 11.

mixture, under these conditions, reaches the manifold are spasmodically picked up my the passing mixtures so that mixtures may enter the combustion chamber excessively rich and containing a ratio of gasoline double what is consideredgood practice.

The present invention overcomes the idescribed undesirable conditions by admit-ting till-3 6112111 such manner that thorough and complete mixing ofthe same with the fuel is insured, The air enters the chamber 9 around the ring 10 and escapesthrough-the passage '13 in the spoke to escape through the ports in thecone 14:, the fuel from the carburetor flowing through the bore of the ring and pastthe' sides of the spoke. It will be noticed, upon reference to Fig. 3, that the'air discharging through the ports 11 will issue in the form of line jets or sprays in thegeneral direction of travelof the fuel but converging toward the center of the fuel stream, while" theiair issuing through the ports15 vwill be divergent ets traveling in opposition to the direction of flow of the fuel stream, the result being that the air spray thoroughly penetrates the fuel stream and acoinplete mixing'is eflfected.

' Asthe plunger rod 'is pushed inward .toopeirthe valve 24', the spring 32ris compressed and will movethe valve 3l;toward' the air inlet softhat suddeninrush of air will be counteracted and the passing oftoo Some of the air; flows through the much air through the device, when the carburetor is suddenly opened, will be pi-e- V vented. V I

It will, of course, be obvious that the device described above may be formed as an attachment to be inserted between the conventional carbureter and the manifold trunk or may. be'forined as an integralpart ofthe carbureterand I'do not desire to be limited except in accordance w th the claims appended hereto.

What I claim as new and desire tosecure I 1. A device for the purpose set forth comprising a body secured tOtheoutletof a caryburetor adjacent an engine intake 'inanifold and having an opening-therethrough for the flow of fuel fronrthe carburetor, the body having anair chamber, means for admitting air to said chamber, a ring secured in said chamber andconstitutin-g an inner-circular wall therefor, said ring having ports for the discharge of air from the air chamber in the general direction of flow oflfuel and a hollow spoke in said ring communicating with the air chamber and provided at its center with ports for the discharge of air in a directionopposed to the direction offlow ofthe fuel, I I 2 A device for the purpose set'forth com prising a body secured to the outlet of a carburetor adjacent an engine intake mani fold andhaving an opening theret-hrough fortheflow of fuel from the carburetor, the body having ,an-airchamber, means for (l'lSi-i charging air from .said chamber into the fuel stream, a cylindrical valve chamber below said air chamber. and in communication therewith, and provided with an air inlet, a free piston valve in said chamber, yieldable means holding the valve normally over, the air inlet to close-the same, and means cooperating with the 1 carburetor throttlevalve for moving the free piston 3. A'device for the :purpose'set forth comprising a body secured toithe outlet of a carbureter adjacent an engine intake manifold *and having an opening therethrou for the flow of f'uel from the carbureter, the body having an air chamber, means for discharging air from said chamber into the fuel stream, a cylindrical. valve chamber below said air chamber and in communication therewith, vand provided with an air inlet, a free pistonvalve in said chamber, yieldable meansholding the valvenorinally over the air inlet to close the same, and means cooperating with. they carbureter throttle,

valve formoving the free piston .valve to open position, and retarding disk. valve mounted in. the valve -chamber oo-axially with the free piston waive; i

i H an. deflect-5i the nu eat een prising body adapted to be sect between acarbureter' and an engine intake manifold and having an opening there- 'through for the flow of fuel fromthe carbureter, the body having an air chamber, means for discharging air from s'aid chamber into the fuel stream, a cylindrical valve chamber below said air chamber and in communication therewith, and provided with an air inlet, a free piston valve in said chamber, yieldable means holding the valve normally over the air inlet to close the same, a plunger mounted axially in the valve chamber and bearing upon-the free piston valve in oppos1-- tion to the yieldable means, an angle lever mounted adjacent the outer end of the plunger and having. one arm extending across and bearing against the outer end'of the plunger, and a handle extending from the other arm of the plunger and arranged to be operated by the devicescontrolling the carburetor throttle valve. 5. device for the purpose set forth comprising a bodyadapted to be secured between a carbureter and "an engine intake manifold and having an opening therethrough for the flow of fuel from the carbureter, the body having an air chamber,

means for discharging air from said chamacross, and bearing'against the outer end of the plunger, and a handle extending from the other arm of the plunger-and arranged to be operated by the devices controlling the carbureter throttle valve, 'a disk valve mounted loosely on the plunger, and an expansion spring bearing at one endagain'st I the valve and at theopposite end against an abutment on the plunger. I v j 6. In a carbureter, having ,a throttle and having an outlet portion,an opening through said portion for flow of fuel therefrom, the combination with an .air' chamber adjacent the line of flow from said portion, means movable independently of said throttle and controllable thereby for admitting air to 7 said chamber, and means for discharging the air from said chamber in the general direction of flow of the fuel stream.

7. In a carbureter. having a throttle and having an outlet portion, an opening through said portion for flow of fuel therefrom, the

combination with an air chamber adjacent the line of flow from sa d portion, means s-- Hy a table iade mantis at said throttl and 'pheric air to said chamben and means for discharging'the air from said chamberin-a J direction opposedto the direction of flow of the fuel stream. v

8. In a carburetor, having it controllable thereby for admitting attics-=- a throttle and.

having an outlet portion, an opening through 1 said portion for flowof fueltherefron' the" combination with an aircham'ber adjacent "the line of flow from said portion, means 'movable independently of said throttle. and controllable thereby for admitting air to said chamber, and means for discharging a portion of-the air from said chamber in" the general direction of flow of the fuel stream, and means for discharging an additional portion of said air in a direction opposed to the'flow of the fuel stream.

9. In a-carbureter, having an portion for flow of fuel to the manifold, the combination-With an, air chamber located at said portion, means for discharging air from said chamber into the fuel stream, a valve chamber in communication therewith, and

provided with anjair inlet, a valve in said chamber, with yieldable neans holding the valve normally over the air inlet to close the same, a shutter or closingYmeans mounted axially 1n the valve chamber ln'opposition to outlet poi tion adapted to be -secured to an engine in-- take manifold and an openmg through sa d the yieldable means, anangle leverattached to the'outer end of the closing means andarQ ranged to be operated by'the devices con trolling the carbureter throttle valve.

10. 1'11 a carbureter, having a throttle a d having an outletportion, an opening through" said portion flowIof fuel therefrom, the

combination with an air chamber adjacent the line of flow-from said portion, means for discharging'air from said chamber into the fuel stream, a cylindrical valve chamber below said 'airchamber and incomniunica-j tion therewith, and provided withflan air I inlet, a free piston valve in said chamber,(

yieldable means holding the valve normally over the a1r inlet to close the same, a plunger mounted axially 1n the valve chamber and bearing upon the free piston valve in oppo-i sition to the yieldable means, an angle lever Vinounted adjacent the outer end of the plunger and having one. arm' extending across, and bearing against the outer end of the plunger, and a handle extending from carbureter" throttle valve, a mounted loosely on the plunger, and an expansion spring hearing at one end against the valve and at the opposite end against" an abutment on the plunger.

11 A;di luting device including a body block having an opening therethrough for flow of fuel, said body block having an air the other arm of the plunger and arranged to be operated by the devices controlling the disk valve the 'fuel stream.

chamber, means for admitting; air to said chamber, and means for discharging the air from sald chamber centrally ofsaid open-.

ing and in a directionopposed tothe direc tio'nof flow of the fuel stream. 7

12. A diluting device including"- a body block having an opening therethrough for ":flow of fuel, said body block having an air chamber, means for admitting air to said chamber,'and means for discharging the air "from said chamber peripherally of said opening and in the general direction of the fflow of the fuel stream, and means for discharging some air centrally of said opening and ma direction opposed to. the flow of 13. A diluting device including. a body block having an opening 'therethrough for flow of fuel, saidbody block having an'air chamber, means for admit-ting air to said chamber, and means for discharging the air fromfls'aid chamber inopposite directions to the flow of the fuel" stream, and means for connningling the streams of air with each other and with the fuel stream.

a 14. A' dilutingdevice including a body block having -an opening therethrough for flow of fuel, said'body block having an air chamber, means for admitting air to said "through said portion for flow of fuel to the manifold, the combination with an air cham- 7 lax-5,41%

ber located at said portion, means for discharging air from saidchamber into the fuel stream, a valve cha'mberin combination therewith and provided with an air inlet,-

a valve associated Withjsaid chambenyielde able means normally holdmgsaid valve in position to close the air inlet, and means in said valve chamber mo vableindepen dently of said valve and operable by the throttle to openthe valve; I I I 16. In a carburetor having a throttle and having an outlet portion, an opening throng-i said portion for flow of fuel therefrom, the

combination with an aircl aniberadjacent the line of flow from said portion, and havmg a passage effective to establishcommunn cation with the atmosphere, means'for controlling air flow tosaid passage, ineans'to check and govern the fiow of air from said controlling means, and meanslto'discharge the air from said Chamber into the fuel" stream. j y m V 17; In a carburetor having a throttleand having an outlet portion, and opening through said portion for flow of fuel there from, the combin'ation Withan air chamber adjacent the line of flow from said portion, "and having a passage eife'ctlve to establish communicationwith the atmosphere, a valve controlled by said throttle, for admitting air to said passage, a spring controlled suction valve between said admission valve and the chamber for checkingand governing'the flow of air from said admission valve, and means to discharge the air from saldchamher into the fuel stream: 7 Y

In testimony whereof I hereunto affix my signature,

A ALBERT GIWAGYNERI 

